Road-drag.



A. E. PETERSON.

.RO'AD DRAG. APPLICATION HkED SEPT.25.1916.

Patented Nov. 13, 1917.

Aanonn. PETERSON, or LANYON, Iowa.

ROAD-DRAG.

Specification of Letters :Iatent.

- Patented Nov. 13,

Application filed September 25, 1916. Serial No. 121,975.

To all whom it may concern:

Be it known that I, AARON E. Pn'rnnson, a citizen of the United States of America, and resident of Lanyon, lVebster county, Iowa, have invented a new and useful Road- Drag, of which the following is .a specification.

The object of this invention is to provide an improved construction for road drags.

A further object of this invention is to provide improved means for altering auto: matically the inclination of the drag members or beams relative to each other.

A further object of this invention is to provide improved means for manually altering the line of draft relative to the width of the drag.

A further object of this invention is to provide improved means forautomati'cally altering the line of draft relativeto the width of the drag.

A further object of this invention is to provide iniproved'means forimanually adjusting the beams or dragging members relative to a plane perpendicular to, the dragged surface.

My invention consists in the construction, arrangement and combination 'Of elements hereinafter set forth, pointed out in my claims and illustrated by the accompanying drawing, inwhich Figure 1 is a plan of the complete device or implement. Fig. 2 is anend' elevation of the device, the draft, means and connecting chains being omitted wide portion being broken away to. economize space. Fig, .3 is a detail partly in section, on the. line of Fig. 1 and slightly modified, a beam be: ing shown inclined fr m the vertical plane in which it is shown in Figs. 1 and In the construction ofthedeviceas shown the numerals 10, 11 designate front and, rear beams respectively, which beams preferably are made of metal by rolling. The beam 10 is formed with .a base flange 12 extending forwardly from its. lower margin and a top flange 13 extending rearwardly'from its upper margin. The beam. 11 preferably is formed with top bottom flanges 1d, 15 extendingrearwardly from its "upper and lower marginsrespectively'. A scraper blade 16 is fixed tolthe'bearn 1Q curved forwardly at extends. hel'ojvthe flange 12. Draw bars17,'18. .arefino1mted transversely of the upper marginal portions 7 at a? 9.. are sent nce to each other and to the ends of said beams. Furthermore, the forward ends of the dravi bars 17, 1-8 are spaced apart a greater distance than are the rear ends thereoff The draw bars are connected to the beams by means of bolts 19 extending selectively through holes 20 in the draw -bars and through registering holes in the upperfianges 13, 14 of the beams. Bracketsz'l', 22v are arranged in pairs on and project rearwardly from upper portions of the beams 10, .11 and the bolts 19 also extend through registering holes in the brackets. Furring blocks 23 of uniform thickness may be interposed between the rear endsof the brackets 2 1, '22 and the lower faces of the draw bars for the purpose of holding the beams at right angles to the draw bars. WedgeS 23 may be interposed between the rear ends of the brackets 21. 22 and the lower faces of the draw bars (Fig. 3) for the purpose of adjusting the beams to incline relative to I planes perpendicular to a surface "to be dragged. A stay chain .24: is arranged ob l-iquely of the central space inclosed by the beams and draw bars and is connected at its ends to bolts 19. .Other stay chains 25, 26 connect the stay chain 9.4L to "the remaining bolts 19. and also extend obliquely of the central space mentioned at anglesto the chain 24;. Key-hole hooks 27,- 28' arepivota lly mounted in forward end portions of the draw hars l'Z, 18 and draft chains 29, 30f are adjustably engaged in said loops. Forward end portions of the draft chains 2'9, 3'0 arev connected by clevises 31, 3.2 to,

bar '33 preferably is of the same thickness throughout but of greater width at its ends than intermediate thereof. A clevis 13.4 is mounted in embracingrelations onand is adapted to slide from end to' end ofthe d'raf bar 33, and an anti friction roller' jd'iiis mounted. in the rear end portion of said clevis and is adapted to roll on and engage the rear margin of the draft bar. The .clevis 34 is adapted for attachment to a prime mover such as a team of draft animals employed to pull. the drag" over a surface to be treated. i

end portions of 'a draft bar 33. The/draft 'Fig. 1 represents the implement adjusted right of the median line of the highway and the surfacing material is being moved by it to the right side of the highway. In order to move the surfacing material to the center of the highway and at the same time drive or advance on the right side of the median line, the prime mover is turned abruptly to the right, thereby causing the clevis 3% to move along and to the right end of the draft bar 33. At the same time the driver mounts the draw bar 17, thus applying an excess of weight to the inner end of the drag. The result is that the clevis 3e applies draft to the right end of the draft bar 33 and causes the draft bar and chains 29, 30 to be reversed as to inclination relative to each other and to the drag and apply, momentarily, the greater strain to the right end of the drag as communicated to the draw bar 18. The greater load being momentarily carried by the draw bar 17, the result is to cause the beams and draw bars to reverse their positions of inclination relative to each other. At a point midway between the position shown in Fig. 1 and the reverse position assumed by the parts wh n actuated as above described, the beams 10, 11 would occupy parallel planes transversely of the highway or at right angles to the line of draft. Assuming that it is desirable at times to drag a surface with the beams at right angles to the line of draft, registering holes 36, 37 are provided in the central portions of the draft bar 33 and clevis 34 through which holes a clevis pin may be mounted to lock the parts together.

l/Vhen the parts are in the position shown in Fig. 1 draft applied to the clevis 34 tends to advance the drag obliquely, the line of obliquity being determined by the weight of the drag and the resistance afi'orded by the surfacing material. When the parts are in the reverse position described, the same condition obtains but the draft is applied to the opposite end of the implement. Un der any circumstances the operation of dragging causes a trembling or vibration of the implement which tends to discharge the surplus surfacing material at the trailing ends of the beams. The diverging relations of the beams when the draft is applied to either point thereof is due to the wider spacing of the forward ends of the draw bars 17, 18 and tends to prevent clogging and accelerate the movement of the surplus material along and to the discharging end of the rearmost beam 11, the beam 11 thus being given a greater inclination than the beam 10 relative to the line of draft. When the parts are in the position shown in Fig. 1, the stay chain 24 limits the pivotal movement of the draw bars and the beams in I one direction and the stay chains 25, 26 are idle. When the beams and draw bars are reversed as to relative inclination, as above described, the stay chains 25, 26 and central portion of the stay chain 24; extend in line obliquely of the space inclosed by the draw bars and beams and limit pivotal movement of them in the opposite direction, while the end portions of the chain 24 become idle. When the beams and draw bars are so adjusted that said beams are at right angles to the line of draft, the stay chains 24, 25, 26 become idle. For such reasons the stay chains are arranged obliquelyas described.

It will be observed the draw bars 1?, 18 project forwardly from the front beam 10, which construction minimizes the disk of upsetting tiie drag forwardly when the scraper 16 meets with an unusual resistance such as in forcible contact with a root, stone or frozen lump of earth.

Any suitable means may be employed to provide a riding platform for the operator by pivotally mounting planks in desired relations on the draw bars 17, 18.

I claim as my invention 1. A road drag, comprising spaced beams, a scraper mounted on one of said beams, spaced draw bars mounted on and pivotally connecting said beams, the forward portions of said draw bars being spaced apart a greater distance than the rear portions thereof, stay chains arranged obliquely of the space inclosed by and flexibly connecting said beams and draw bars whereby said pivoted connection is limited, and draft means secured to said draw bars, composed of draft chains adjustably secured to said draw bars, a draft bar connecting said draft chains and a clevis slidingly mounted on said draft bar.

2. A road drag, comprising spaced beams and spaced draw bars pivoted to said beams, means for adjusting the inclination of said draw bars and beams relative to each other automatically, means for adjusting one beam in inclination relative to a vertical plane, the latter means comprising wedges removably mounted between the upper margin of said one beam and the draw bars, and adjustable draft devices flexibly connected to said draw bars.

3. The combination of a flexible road drag, a draft bar, flexible connections between the draft bar and drag, a clevis normally slidingly mounted on said draft bar and adapted for attachment to a prime mover and means for securing said clevis at times to and centrally of said draft bar.

4. The combination of a flexible road drag, a draft bar, adjustable flexible connections between the draft bar and drag, a clevis normally slidingly mounted on said draft bar and adapted for attachment to a prime mover and means for securing said clevis at times to and centrally of said draft bar.

5. A road drag comprising spaced beams,

a scraper mounted on one of said beams, spaced draw-bars mounted on and extending across said beams, pivots connecting said beams and draw-bars, a chain connecting diagonally-opposite pivots, other chains connecting the remaining diagonally-opposite pivots respectively to and between the ends of the first chain, and draft means secured to said draw-bars.

6. A road drag comprising spaced beams, spaced draw-bars mounted on and extending across said beams, pivots connecting said beams and draw-bars, a chain connega ing diagonally-opposite pivots, other chains connecting the remaining diagonally-opposite pivots respectively to and between the Copies of this patent may be obtained for live cents each, by addressing the ends of the first chain, the points of connecticn between the latter chains and the first chain being spaced apart, and draft means secured to said draw-bars.

7. In a road drag, a beam, spaced drawbars on and extending across said beam, wedges interposed between said beam and draw-bars whereby the inclination of said beam relative to the vertical may be adjusted, and pivots through said beam, drawbars and Wedges.

Signed by me at Lanyon, Iowa, this 15th day of September, 1916. V

AARON E. PETERSQN.

Witness:

F. WV. LINDQUIST.

Commissioner of Patents,

Washington, D. O. 

